Create your own variation of Up the River.Set a player experience goal first and brainstorm ideas to change the system to meet that goal.Then modify your Up the River prototype, or build a new one, to...

Create your own variation of Up the River.Set a player experience goal first and brainstorm ideas to change the system to meet that goal.Then modify your Up the River prototype, or build a new one, to reflect your changes to the system.Play your varia­tion with friends and see if you have met your expe­rience goal.

Q23: If you want a challenge, stop reading now and come up with your own movement and shooting rules.Explain your reasoning behind this set of rules.

Build the physical prototype described just previ­ously and test it out.Describe any problems that you encounter.Also, list out any questions you have while building it.